The Classic Synthetic bags offer great value and high quality materials. The INTEGRITY insulation,with 97% recycled material, feels as warm and soft as down insulation. Whether you’re looking for your first bag or want to add a synthetic option to your gear quiver, campers of all levels will appreciate the versatility of these Big Agnes System bags. Made thermally efficient with Insotect Tubic construction, you’ll notice the total body insulation right away. Slip any rectangular 20” wide pad into our full pad sleeve design and you are ready to go